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-rw-r--r--storage/xtradb/srv/srv0srv.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/storage/xtradb/srv/srv0srv.c b/storage/xtradb/srv/srv0srv.c
index 3770a8804dd..b55e9fc44cd 100644
--- a/storage/xtradb/srv/srv0srv.c
+++ b/storage/xtradb/srv/srv0srv.c
@@ -1402,6 +1402,8 @@ retry:
os_fast_mutex_unlock(&srv_conc_mutex);
+ DEBUG_SYNC_C("user_thread_waiting");
+
trx->op_info = "sleeping before joining InnoDB queue";
/* Peter Zaitsev suggested that we take the sleep away